{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "patch vulnerability", "arguments": ["vulnerable system", "patch", "vulnerable system version", "issues addressed", "releaser", "patch number", "supported platform", "vulnerability"]}], "input": "China ’s largest Internet security company , Qihoo 360 , has found several high - risk security vulnerabilities in EOS ’s blockchain platform ."}
{"patch vulnerability": []}